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Heteroarylpiperidines, pyrrolidines, and piperazines are useful as antipsychotic and analgesic agents the compounds are especially useful for treating psychoses by administering to a mammal a psychoses-treating effective amount of one of the compounds. Depot derivatives of the compounds are useful for providing long acting effects of the compounds. The compounds are also useful as analgesics by administering a pain-relieving effective amount of one of the compounds to a mammal.

and aryl is phenyl or ##STR136## wherein R.sub.5 is hydrogen, lower alkyl, lower alkoxy, hydroxy, chlorine, fluorine, bromine, iodine, lower monoalkylamino, lower dialkylamino, nitro, cyano, trifluoromethyl, or trifluoromethoxy; and, any hydroxyl group attached to an aliphatic or aromatic carbon atom, or any primary or secondary nitrogen atom may be acylated with a (C.sub.1 -C.sub.15) carboxylic group, in addition, any nitrogen atom may alternatively be acylated with a (C.sub.4 -C.sub.18) alkoxycarbonyl group;

all geometric, optical, and stereoisomers thereof,

or a pharmaceutically acceptable acid addition salt thereof.

2. An antipsychotic composition, which comprises the compound of claim 1 in an amount sufficient to produce an antipsychotic effect, and a pharmaceutically acceptable carrier.

3. A method of treating psychoses, which comprises administering to a mammal a psychoses-treating amount of the compound of claim 1.

4. An analgesic composition, which comprises the compound of claim 1 in an amount sufficient to produce a pain-relieving effect, and a pharmaceutically acceptable carrier.

5. A method of alleviating pain, which comprises administering to a mammal a pain-relieving effective amount of the compound of claim 1.

6. A depot pharmaceutical composition, which comprises a pharmaceutically acceptable carrier and a therapeutically effective amount of the compound of claim 1, wherein the compound contains an acylated hydroxy group, or an acylated amino group.

7. The depot pharmaceutical composition of claim 6, wherein the hydroxy group is acylated, or the amino group is acylated with a (C.sub.4 -C.sub.18) alkanoyl group or a (C.sub.4 -C.sub.18) alkoxycarbonyl group.

8. The composition of claim 6, which contains a pharmaceutically acceptable oil.

12. A method for providing a long acting antipsychotic effect, which comprises injecting into a mammal an amount of the composition of claim 6 sufficient to produce a long acting antipsychotic effect.

13. A method for providing a long acting antipsychotic effect, which comprises injecting into a mammal an amount of the composition of claim 7 sufficient to produce a long acting antipsychotic effect.

14. A method for providing a long acting antipsychotic effect, which comprises injecting into a mammal an amount of the composition of claim 11 sufficient to produce a long acting antipsychotic effect.

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